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What Is Amkor Technology's (NASDAQ:AMKR) P/E Ratio After Its Share Price Rocketed?

Simply Wall St

The Amkor Technology (NASDAQ:AMKR) share price has done well in the last month, posting a gain of 68%. That's tops off a massive gain of 108% in the last year.

Assuming no other changes, a sharply higher share price makes a stock less attractive to potential buyers. In the long term, share prices tend to follow earnings per share, but in the short term prices bounce around in response to short term factors (which are not always obvious). So some would prefer to hold off buying when there is a lot of optimism towards a stock. Perhaps the simplest way to get a read on investors' expectations of a business is to look at its Price to Earnings Ratio (PE Ratio). A high P/E implies that investors have high expectations of what a company can achieve compared to a company with a low P/E ratio.

See our latest analysis for Amkor Technology

Does Amkor Technology Have A Relatively High Or Low P/E For Its Industry?

We can tell from its P/E ratio of 71.41 that there is some investor optimism about Amkor Technology. You can see in the image below that the average P/E (29.8) for companies in the semiconductor industry is lower than Amkor Technology's P/E.

NasdaqGS:AMKR Price Estimation Relative to Market, October 30th 2019

Amkor Technology's P/E tells us that market participants think the company will perform better than its industry peers, going forward. The market is optimistic about the future, but that doesn't guarantee future growth. So further research is always essential. I often monitor director buying and selling.

How Growth Rates Impact P/E Ratios

If earnings fall then in the future the 'E' will be lower. That means even if the current P/E is low, it will increase over time if the share price stays flat. Then, a higher P/E might scare off shareholders, pushing the share price down.

Amkor Technology shrunk earnings per share by 75% over the last year. And EPS is down 21% a year, over the last 5 years. This could justify a pessimistic P/E.

A Limitation: P/E Ratios Ignore Debt and Cash In The Bank

One drawback of using a P/E ratio is that it considers market capitalization, but not the balance sheet. That means it doesn't take debt or cash into account. Theoretically, a business can improve its earnings (and produce a lower P/E in the future) by investing in growth. That means taking on debt (or spending its cash).

While growth expenditure doesn't always pay off, the point is that it is a good option to have; but one that the P/E ratio ignores.

Is Debt Impacting Amkor Technology's P/E?

Amkor Technology's net debt is 19% of its market cap. That's enough debt to impact the P/E ratio a little; so keep it in mind if you're comparing it to companies without debt.

The Verdict On Amkor Technology's P/E Ratio

Amkor Technology's P/E is 71.4 which suggests the market is more focussed on the future opportunity rather than the current level of earnings. With modest debt but no EPS growth in the last year, it's fair to say the P/E implies some optimism about future earnings, from the market. What we know for sure is that investors have become much more excited about Amkor Technology recently, since they have pushed its P/E ratio from 42.6 to 71.4 over the last month. If you like to buy stocks that have recently impressed the market, then this one might be a candidate; but if you prefer to invest when there is 'blood in the streets', then you may feel the opportunity has passed.

When the market is wrong about a stock, it gives savvy investors an opportunity. As value investor Benjamin Graham famously said, 'In the short run, the market is a voting machine but in the long run, it is a weighing machine. So this free visualization of the analyst consensus on future earnings could help you make the right decision about whether to buy, sell, or hold.

Of course you might be able to find a better stock than Amkor Technology. So you may wish to see this free collection of other companies that have grown earnings strongly.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.